Home / 20,088.37-27,720.20-11,474.51

Finding the Fourth Proportional to 20,088.37, 27,720.20 and 11,474.51

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Solution

The fourth proportional to 20,088.37, 27,720.20 and 11,474.51 is: 15,833.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,088.37 : 27,720.20 = 11,474.51 : x
  2. Step 2: Convert to fraction form
    20,088.37/27,720.20 = 11,474.51/x
  3. Step 3: Cross multiply
    20,088.37x = 27,720.20 × 11,474.51
  4. Step 4: Simplify right side
    20,088.37x = 318,075,712.10
  5. Step 5: Solve for x
    x = 318,075,712.10/20,088.37
  6. Step 6: Final answer
    x = 15,833.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.